npidexNPI registry + Medicare data

MARK ANDERSON, MD

Gastroenterology Physician · KNOXVILLE, TN

Individual Active NPI 1003993163

Medicare payment data Part B · 2024

YearBeneficiariesServicesSubmittedAllowedPaid
2024148224$175,430$27,237$21,809
2023254379$315,052$47,191$38,063
2022214376$165,671$40,398$29,165

Top procedures (2024)

HCPCSDescriptionServicesAvg allowedAvg paid
99222Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes51$125$100
43235Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope38$110$84
43239Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope31$115$93
99221Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes14$79$64
99231Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes13$47$37
45385Removal of polyps or growths of large bowel using an endoscope with mechanical snare11$225$186

Taxonomy & licensure

SpecialtyCodePrimaryLicenseState
Gastroenterology Physician207RG0100X✓MD0000019697TN
Gastroenterology Physician207RG0100X036174985IL

Medicare participation

Enrolled in Medicare

CMS lists this provider as eligible to order and refer under Medicare. They billed Medicare Part B in 2024.

Enrolment status from public CMS files — not a guarantee of coverage for any particular patient or plan. We hold no commercial-insurance network data; confirm with the provider and your insurer before an appointment.

Part B
Yes
DME
Yes
Home health
Yes
Power mobility
Yes
Hospice
Yes

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Source: NPPES (public domain) and CMS Medicare Physician & Other Practitioners data. Not affiliated with CMS, NPPES, or any government agency.